Actual field experiment of in-situ combustion was successfully made at Oguchi I layer, Niitsu oil field. In this paper the outline of both laboratory and filed experiments tested up to the present are described.
For the purpose of obtaining a successful result of secondary recovery method it needs a detailed plan for the project. Fundamental knowledges for planning the method, including a reservoir study carried out by the use of decline curves, are described in this paper.
Increasing interest has developed in the possible use of atomic energy for petroleum development. And, atomic energy may become future oil-recovery tool. So, it is the purpose of this paper to discuss the effects of underground nuclear explosion and radiation on oil recovery.